I want to buff my car out by a shop, is there anyone who opposes or can share some pros and cons about it

I know that a professional detail costs at least $300 with paint correction. I bought a full kit with a Porter Cable random orbital buffer for around $300. I got everything off detailedimage.com, but you can check out Autogeek.com too. There's lots of info on how to do a full detail on detailedimage.com though.